package cn.tedu.v4;

import java.io.*;
import java.net.ConnectException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;

/**
 * 客户端：登录与消息广播不冲突 √
 */
public class Client {
    private Socket socket;
    private static final String HOST="192.168.45.180";
    private static final Integer PORT=4545;

    private BufferedReader br;
    private PrintWriter pw;

    public Client(){
        try {
            socket=new Socket("192.168.45.180",PORT);
            br=new BufferedReader(new InputStreamReader(socket.getInputStream(),"UTF8"));
            pw=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(),"UTF8")),true);
        }catch(NullPointerException e){
            System.out.println("友情提示：IP传入错误导致链接失败~");
        }catch(UnknownHostException e){
            System.out.println("友情提示：IP传入错误");
        }catch(ConnectException e){
            System.out.println("客户端链接失败：0建议检查IP或者端口号");
        }catch (IOException e) {
            System.out.println("客户端链接服务器失败，提示：检查IP/端口");
        }
    }

    public void start() {
        try {
            new Thread(()->{
                try {
                    String message;
                    while((message=br.readLine())!=null){
                       System.out.println("服务器端说："+message);
                        System.out.println("客户端请输入：");
                    }
                } catch (IOException e) {
                    System.out.println("服务器端读入失败！");
                }
            }).start();

            Scanner input = new Scanner(System.in);
            while (true){
                System.out.println("客户端请输入：");
                String line=input.nextLine();
                pw.println("客户端说："+line);
            }
        }finally{
            if(br!= null)
                try {
                    br.close();
                }catch (IOException e) {
                    System.out.println("结束通讯，关闭失败！");
                }
            if(pw!=null)
                pw.close();
            if(socket!=null&&!socket.isClosed())
                try {
                    socket.close();
                }catch (IOException e) {
                    System.out.println("客户端关闭失败");
                }
            if (socket!= null &&!socket.isClosed())
                try {
                    socket.close();
                } catch (IOException e) {
                    System.out.println("通讯关闭失败");
                }
        }
    }
    public static void main(String[] args){
        new Client().start();
    }

}
